from the GNU version of the Collaborative International Dictionary of English
- proper n. An extensive genus of fossil ferns; -- so named from the regular comblike arrangement of the leaflets.
from The Century Dictionary and Cyclopedia
- n. A genus of widely disseminated fossil ferns, occurring in large numbers in the coal-measures of Europe and America, and found also in the Middle Devonian of New Brunswick.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. Carboniferous fossil fern characterized by a regular arrangement of the leaflets resembling a comb
Sorry, no etymologies found.
Among these there occur _Pecopteris Whitbiensis_, _Pecopteris obtusifolia_, _Pecopteris insignis_, -- all well marked English species; with several others.